Water Tank Capacity Calculator
Not sure how many litres of storage your building needs? Choose your building type, enter a few basic details, and get an indicative capacity to work with.
STEP 1
SELECT DOMESTIC OR COMMERCIAL
STEP 2
DESCRIBE YOUR BUILDING
STEP 3
CALCULATE
COLD WATER STORAGE
TANK CAPACITY CALCULATOR
This Water Tank Capacity Calculator tool has been developed to assist in determining how much water your building needs.
The following commercial and domestic sectors are covered:
How It Works
What this calculator is doing
01
You describe the building
Domestic details (bedrooms, bathrooms) or commercial details (building type, occupancy).
02
We apply typical demand figures
The tool uses indicative litres-per-fitting or litres-per-person figures for that kind of building.
03
You take the figure further
Use your result in the Size Calculator, or send it to Tricel for a confirmed recommendation.
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Common Questions
FAQs
What does this calculator estimate?
It gives an indicative litre figure for how much cold water storage a building of a given type and occupancy might need. It’s a starting point for planning and budgeting, not a specification.
What do I do with my result?
Take the litre figure to the Water Tank Size Calculator to see a suggested tank model, or send it directly to Tricel Water UK for a confirmed recommendation.
SPEAK WITH US DIRECTLY
Want a confirmed capacity for your building?
Share your project details with our technical team – we’ll review your requirements and confirm a recommended capacity, free of charge.
This calculator is a guide, not a specification. Cold water storage tanks are project-specific. Contact Tricel’s technical team to confirm the exact volume required for your system. © 2026 Tricel Water. All rights reserved.
